[Ips-dhfpr] SWS Daily HF Prop Report - 28 February 19 issued 2330 UT on 28 Feb 2019 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 FEBRUARY 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 FEBRUARY) 
Date   T index  Conditions    
28 Feb    -4    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 50% during local night.
   Niue Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day.
      Enhanced by 25% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jan      -27
Feb      -12
Mar      -13


2. FORECAST (01 MARCH - 03 MARCH)
Date   T index  Conditions       MUFs                              
01 Mar   -20    Fair-normal      Near predicted monthly values/depressed 
                                 10 to 30%
02 Mar   -20    Fair-normal      Near predicted monthly values/depressed 
                                 10 to 30%    
03 Mar   -10    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: On UT day 28 February, MUFs were mostly near monthly 
predicted levels over the Australian region. Cocos Island region 
experienced moderate enhancements during local night. Sporadic 
E layers were observed over some Australian ionosonde stations. 
Minor to Moderate MUFs depressions may be observed on UT days 
01-02 March due to continued very low levels of ionising radiation 
from the Sun and current disturbed geomagnetic conditions.

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For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at bom.gov.au
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